#include<iostream>

class Base71 {
public:
	int m_A;
	Base71() {
		this->m_A = 100;
	}

};

class Base72 {
public:
	int m_B;
	Base72() {
		this->m_B= 200;
	}

};
class Son7:public Base71,Base72 {
public:
	int m_C;
	int m_D;
	Son7(){
	
		this->m_C = 300;
		this->m_D = 400;
	}

};
void test71() {

	Son7 s;
	std::cout << "size of test71=" << sizeof(Son7) << std::endl;
}
int main7() {
	test71();
	system("pause");
	return 0;
}